Question

the age of Sonu is three more than the age of his brother after five years the sum of the age will be 43 years find the age of Sonu and his brother ​

Answer 1

Answer:

y=11/2 and x=33/2

Step-by-step explanation:

let,

age of sonu be =x

age of her brother =y

ATQ,

x=3(y). .........(1)

after 5 years,

(x+5) + (3y+5) =43

x+3y+10=43

x+3y = 43-10

x+3y=33

x=33-3y. ..........(2)

on comparing equation (1) and (2),we get

3y=33-3y

3y+3y=33

6y =33

y=33/6

y=11/2

substitute value of y in equation (1) ,we get

x=3(11/2)

x=33/2

therefore age of sonu is 33/2 years and her brother is 11/2 years.